Avogadro's #
What is Avogadro's number written out in full form, with all its zeros?
602,000,000,000,000,000,000,000 (602 hexillion) with 21 zeros
Where can we find the molar mass of an element on the periodic table?
Find "atomic mass," which is at bottom of each symbol (red on Ms. Streff's periodic table)
What conversion factor would you use to go from grams to kilograms?
1000 grams = 1 kilogram
Find the number of moles in 17 grams of lithium.
2.45 moles Li
Write out Avogadro's Number in scientific notation.
6.02 x 1023
How many grams of oxygen are in a mole of oxygen gas (O2)?
32 grams of O2
What conversion factor would you use to go from kilograms to pounds?
2.2 kilograms = 1 pound
Find the number of grams in 6.4 moles of copper (Cu).
406.7 grams Cu
How many atoms of carbon are in a mole of carbon atoms?
6.02 x 1023 carbon atoms
How many moles of silver (Ag) are in 107.868 grams of silver?
1 mole
What conversion factor would you use to go from centiliters to liters?
100 centiliters = 1 liter
Find the number of atoms in 13.4 g of helium.
2.015 x 1024 atoms Helium
6.02 x 1023 carbon molecules
How many grams of acetone (C3H6O) are in 1 mole of acetone?
58.08 grams acetone
What two conversion factors are needed to convert from hours to seconds?
1 minute = 60 seconds
Find the number of molecules in 12.3 grams of carbon dioxide (CO2)
1.68 x 1023 molecules CO2
How many molecules of xenon are in 7 moles of xenon?
How many grams of neon are in 2.5 moles of neon?
What two conversion factors are needed to convert from grams to tons?
454 grams = 1 pound
2000 pounds = 1 ton
Find the number of molecules in 0.984 kilograms of water.
3.29 x 1025 molecules water (H2O)